loder



(No Model.) 4 Sheets-Sheet 1.

J. H. LODER. GA-SO-ELEGTRIG LAMP.

No. 297,820. I Patented Apr, 29 1884.

Jfzm HLoder (No Model.) 4 Sheets-Sheet 2. J. H. LODER.

GASO-ELEGTRIG LAMP.

Patented Apr //v' VE/VTOR L m M W IVESSES by ZQ/ K 4 Sheets-Sheet 3.

(No Model.)

J. H.-LODER.

GASO-ELEGTRIG LAMP.

Patented Apr. 29,- 1884 fi m W Z M, m

5 5 E n W N FETERs Fhnlniuw nmr. Wahingion. D. C.

(No Model.)

" 4 SheetsSheet 4.

J. H. LODER.

GASO-ELEGTRIG LAMP.

Patented Apr.'29, 1884.

N. PETERS. holvlillagrnphan Walhinglan. D. (L

v UNITED" STATES PATENT Brien.-

JOHAN HERN LODER, or BRUSSELS, BELGIUM. I

GASO-ELECTRIOLAM P.

SPECIFICATION forming part of Letters Patent No. 297,820, dated April 29, 1884:.

Application filed January 17, 1883. (No modeLl Patented in England December 8, 1882, No. 5,861; in Belgium December 9, 1882.

I N0.43,5l2; in France December 11 1882, No. 140,314, and in Germany December 16,. 1882, No. 120,725.

To aZZ whom, it may concern.-

Be it known that I, JOHAN HERN Lonnn, a

subject of the King of Holland, residing at Brussels, in the Kingdom of Belgium, have invented a new and useful Improvement in Gaso-Electric Lamps, of which the following is a specification.

My invention relates to combination gasoelectric lamps, or lamps in which the light is obtainednot only from the gas-flame, but also from carbon, graphite, or other suitable pen oils, which are placed in or in close proximity to the gas-flame, and become heated thereby, as also by means of an electric current passed through said pencils.

My invention consists in the improved arrangement and combination of parts, as hereinafter more fully described, and illustrated. in the accompanying drawings, which form In all the figures like letters of reference re-' fer to corresponding parts.

The lamps are preferably of the Bunsen type, and are provided with a round or oval burner for the gas, which enters the lamp by pipes at b, and passes to the point c,where combustion takes place, the proper amount of air being admitted through the inlet 1' for this purpose. The combustion-chamber more properly extends from the points I Z, at the top, to

q q, at the bottom, and around or within this chamber, below the point 0, are placed removable non-conducting cylinders e d, adjustably supported by a screw-nut, y. Suitable con-- ductors passthrough between these cylinders and are connected at their base with suitable To regulate the distance apart of the carbon or other pencils, a ring, 0 0, of non-conducting material is secured within the combustionchamber above the air-inlet r, and bears on the plates f f. As the cylinders deareraised orlowf ered by nut 3 the pencils will be caused to ap proach or be permitted to separate. The open- .ing Z Z is preferably provided with'a ring of non conducting material, and should be as small as practicable; thus, when two carbons are employed the opening may be oval. A disk of non-conducting material, m, is preferably placed between the conducting-plates f f, and it may be supported by means of a conical hollowed base, m, fitting over the gas-tube I), and provided with suitable openings for the escape of the gas.

' For the purpose of cleansing, the upper part of the chamber llq q is made removable, as is also the part 0 0, while the insulating-plate m may be removed when it is desired to cleanse pipe I).

In the modification in Fig. 3, the cylinders, with the conductors contained therein, are placed within a double ring, 1, provided with an annular opening for the exit of the gas, which is fed thereto through pipesb b, as represented. The ring is screwthreaded, and the adjustment of the cylinders d 6 may be secured as heretofore described. In other respects the construction is not essentially different from which in turn are moved, and the carbons through the plates f consequently regulated by means of insulated pressure-pins S S. In Fig. 5 a modification of this arrangement is shown, in which the carbons are placed without the gastube- 1). The connections (1 d, insulated from pipe I), carry the flexible blades 0, holder arms or plates f, and carbons h, the plates be ing bent to the required position by means of insulated screws S S. More than two sticks or pencils may be used in these lamps, and, instead of carbon, graphite of good quality may be used. In order to insure a steady gasflame, various forms of lanterns or globes may be used, that in Fig. 1 being provided with a double truncated cone-shaped chamber, A, carrying at its base a reflector, O, and terminating at its top in an escape-pipe, B, which is suitably supported and passes within airinlet pipe K, the latter being provided with gauze G, to prevent any sudden inrush of air, the lantern being otherwise closed. The requisite atmosphere for the proper consumption of the gas passes into the chamber Z 2 g by means of opening r,wl1 ile the gas may be lighted either by electricity or .by a small contiguous gas-jet left always burning.

\Vhen the lamp is used in halls or other large inclosed spaces, a globe may be used, and instead of the chamber.A, as shown in Fig. 1., a metal or porcelain plate, I suspended as shown in Fig. 2, may be used. The globe rests on glass or porcelain plates, in which are holes 1 t, which communicate, when the globe or plate I K is turned, with the chamber ll q q. One of these glass or porcelain plates is adapted to be turned to cause the openings in the two plates to register, and thus admit the air, or to be partially closed, and in this manner the-access of air is regulated. The ordinary arrangement for Bunsen burners may be employed, if preferred.

In Fig. 3 the globe arrangement is represented with an exit-tube, D 1), provided with a contracted lower opening and side air-inlets, O 0, other access of air being unnecessary. In Fig. 4 the globe or lantern rests on supports a u.

In Fig. 5 the carbon or other pencils are arranged in a manner analogous to that described in reference to Fig. 4, with the exception that they are placed outside the gas-tube b c.

In all cases it is intended that the flame should pass through the openin A13 for a distance of three-eighths to two-thirds of an inch, as shown by the arrow in Fig. 3. The current employed need not be so powerful as that employed for ordinary are lighting, as it is intended that the carbon or other pencils should glow rather than burn, and it is the semi-incandescence obtained by the action of the current in combination with the gas that enables a brilliant light to be obtained.

I am aware that gaso-electric burners are not, broadly, new, and that it is old to combine the effect of a current of electricity with the coinbustion of a gas-flame for the purpose of increasing the illumination therebysuch as by perforated carbons and like devices-and this I do not claim generally, my invention being limited to the specific devices and combinations of devices hereinafter claimed.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is'- 1. In a gaso electric lamp, the combination of a gas-burner, electrical conductors, air supplying and regulating devices, and devices for regulating the position of the said electrical conductors, substantially as described.

2. In gaso-electrie lamps, the combination, with the gas-burner, of flexible conductors, holder'arms, and carbon or other pencils, all operating substantially as specified, and for the purposes set forth.

3. In gaso-electric lamps, the combination, with the gas-burner, of regulating mechanism bearing upon the pencil-holders, which are operated by movable screw mechanism, all substantially as specified.

4. In gaso-eleetric lamps, the combination, with said lamps, of exit-chambers or plates, into or through which the flame will pass for a short distance for the purpose of giving increased steadiness to said flame, all substantially as specified.

5. In gaso-electric lamps, the combination, with said lamps, of movable globes or lanterns and suitable supporting disks or plates, by the movement of which the air-feed to the lamp can be regulated, substantially in the manner described.

J. H. LODER.

\Vitnesses:

JXo. TILSOX, Anonrn J. Swan. 

